Factcheck: why fracking in UK will not reduce your energy bills

Experts say it would take years to begin shale gas production and it is far less accessible than once thought

The political earthquake in Downing Street has delayed publication of a review into the scientific evidence around fracking for shale gas, which had been expected earlier this month.

In the face of an urgent and intensifying energy crisis, that delay can only be bad news - or so the vocal media and political supporters of shale gas development would have you believe. (The Sun has published at least 14 editorials this year calling for UK fracking - one every fortnight.)